可以ping通LAN内所有主机，在dos下运行，显示ping通情况，并返回主机的主机名和IP地址以.txt的形式输出，注意如果dos出错，要手动修改程序中的IP地址范围，程序是逐一遍历IP地址的，要根据自己主机所在网络ping。-Qualcomm LAN can ping all the hosts, at dos run, showing ping pass and return the host' s host name and IP address. Txt form of output, note that if dos error, it is necessary to manually modify the program in the IP address range, procedures are one by one traverse IP address to the host where the network according to their ping.